Examples with SingleRowSet org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet used on opensource projects

Example 36 with SingleRowSet

use of org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet in project drill by apache.

the class TestScanOperExecLateSchema method testLateSchemaDataOnFirst.

@Test
public void testLateSchemaDataOnFirst() {
    // Create a mock reader, return two batches: one schema-only, another with data.
    MockLateSchemaReader reader = new MockLateSchemaReader();
    reader.batchLimit = 1;
    reader.returnDataOnFirst = true;
    // Create the scan operator
    ScanFixture scanFixture = simpleFixture(reader);
    ScanOperatorExec scan = scanFixture.scanOp;
    // Standard startup
    assertFalse(reader.openCalled);
    // First batch: build schema. The reader helps: it returns an
    // empty first batch.
    assertTrue(scan.buildSchema());
    assertTrue(reader.openCalled);
    assertEquals(1, reader.batchCount);
    assertEquals(0, scan.batchAccessor().rowCount());
    SingleRowSet expected = makeExpected();
    RowSetComparison verifier = new RowSetComparison(expected);
    assertEquals(expected.batchSchema(), scan.batchAccessor().schema());
    // Next call, return with data.
    assertTrue(scan.next());
    verifier.verifyAndClearAll(fixture.wrap(scan.batchAccessor().container()));
    // EOF
    assertFalse(scan.next());
    assertTrue(reader.closeCalled);
    assertEquals(0, scan.batchAccessor().rowCount());
    scanFixture.close();
}

Example 37 with SingleRowSet

use of org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet in project drill by apache.

the class TestScanOperExecOuputSchema method testStrictProvidedSchemaWithWildcardAndSpecialCols.

@Test
public void testStrictProvidedSchemaWithWildcardAndSpecialCols() {
    TupleMetadata providedSchema = new SchemaBuilder().add("a", // Projected, in reader
    MinorType.INT).add("d", // Projected, not in reader
    MinorType.BIGINT).add("e", // Not projected, not in reader
    MinorType.BIGINT).buildSchema();
    providedSchema.metadata("d").setDefaultValue("20");
    providedSchema.metadata("e").setDefaultValue("30");
    providedSchema.setProperty(TupleMetadata.IS_STRICT_SCHEMA_PROP, Boolean.TRUE.toString());
    providedSchema.metadata("a").setBooleanProperty(ColumnMetadata.EXCLUDE_FROM_WILDCARD, true);
    BaseScanFixtureBuilder builder = new BaseScanFixtureBuilder();
    // Project schema only
    builder.setProjection(RowSetTestUtils.projectAll());
    builder.addReader(new MockSimpleReader());
    builder.builder.providedSchema(providedSchema);
    builder.builder.nullType(Types.optional(MinorType.VARCHAR));
    ScanFixture scanFixture = builder.build();
    ScanOperatorExec scan = scanFixture.scanOp;
    TupleMetadata expectedSchema = new SchemaBuilder().add("d", MinorType.BIGINT).add("e", MinorType.BIGINT).buildSchema();
    // Initial schema
    assertTrue(scan.buildSchema());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    // Batch with defaults and null types
    assertTrue(scan.next());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(20L, 30L).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    assertFalse(scan.next());
    scanFixture.close();
}

Example 38 with SingleRowSet

use of org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet in project drill by apache.

the class TestScanOperExecOuputSchema method testProvidedSchema.

/**
 * Test an output schema.
 * <ul>
 * <li>Column a has an input type of VARCHAR, and output type of INT,
 * and the framework will insert an implicit conversion.</li>
 * <li>Column b has an output type of BIGINT, is projected, but is
 * not provided by the reader. It will use the default value of 20L.</li>
 * <li>Column c is not in the output schema, is not provided by the
 * reader, but is projected, so it will use the default null type
 * of VARCHAR, with a null value.</li>
 * </ul>
 */
@Test
public void testProvidedSchema() {
    TupleMetadata providedSchema = new SchemaBuilder().add("a", // Projected, in reader
    MinorType.INT).add("d", // Projected, not in reader
    MinorType.BIGINT).add("e", // Not projected, not in reader
    MinorType.BIGINT).buildSchema();
    providedSchema.metadata("d").setDefaultValue("20");
    providedSchema.metadata("e").setDefaultValue("30");
    BaseScanFixtureBuilder builder = new BaseScanFixtureBuilder();
    builder.setProjection(new String[] { "a", "b", "d", "f" });
    builder.addReader(new MockSimpleReader());
    builder.builder.providedSchema(providedSchema);
    builder.builder.nullType(Types.optional(MinorType.VARCHAR));
    ScanFixture scanFixture = builder.build();
    ScanOperatorExec scan = scanFixture.scanOp;
    TupleMetadata expectedSchema = new SchemaBuilder().add("a", MinorType.INT).add("b", MinorType.VARCHAR).add("d", MinorType.BIGINT).addNullable("f", MinorType.VARCHAR).buildSchema();
    // Initial schema
    assertTrue(scan.buildSchema());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    // Batch with defaults and null types
    assertTrue(scan.next());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(10, "foo", 20L, null).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    assertFalse(scan.next());
    scanFixture.close();
}

Example 39 with SingleRowSet

use of org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet in project drill by apache.

the class TestScanOperExecOuputSchema method testProvidedSchemaWithWildcard.

/**
 * Test non-strict specified schema, with a wildcard, with extra
 * reader columns. Reader columns are included in output.
 */
@Test
public void testProvidedSchemaWithWildcard() {
    TupleMetadata providedSchema = new SchemaBuilder().add("a", // Projected, in reader
    MinorType.INT).add("d", // Projected, not in reader
    MinorType.BIGINT).add("e", // Not projected, not in reader
    MinorType.BIGINT).buildSchema();
    providedSchema.metadata("d").setDefaultValue("20");
    providedSchema.metadata("e").setDefaultValue("30");
    BaseScanFixtureBuilder builder = new BaseScanFixtureBuilder();
    builder.setProjection(RowSetTestUtils.projectAll());
    builder.addReader(new MockSimpleReader());
    builder.builder.providedSchema(providedSchema);
    builder.builder.nullType(Types.optional(MinorType.VARCHAR));
    ScanFixture scanFixture = builder.build();
    ScanOperatorExec scan = scanFixture.scanOp;
    TupleMetadata expectedSchema = new SchemaBuilder().add("a", MinorType.INT).add("d", MinorType.BIGINT).add("e", MinorType.BIGINT).add("b", MinorType.VARCHAR).add("c", MinorType.VARCHAR).buildSchema();
    // Initial schema
    assertTrue(scan.buildSchema());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    // Batch with defaults and null types
    assertTrue(scan.next());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(10, 20L, 30L, "foo", "bar").build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    assertFalse(scan.next());
    scanFixture.close();
}

Example 40 with SingleRowSet

use of org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet in project drill by apache.

the class TestScanOperExecOuputSchema method testStrictProvidedSchemaWithWildcard.

@Test
public void testStrictProvidedSchemaWithWildcard() {
    TupleMetadata providedSchema = new SchemaBuilder().add("a", // Projected, in reader
    MinorType.INT).add("d", // Projected, not in reader
    MinorType.BIGINT).add("e", // Not projected, not in reader
    MinorType.BIGINT).buildSchema();
    providedSchema.metadata("d").setDefaultValue("20");
    providedSchema.metadata("e").setDefaultValue("30");
    providedSchema.setProperty(TupleMetadata.IS_STRICT_SCHEMA_PROP, Boolean.TRUE.toString());
    BaseScanFixtureBuilder builder = new BaseScanFixtureBuilder();
    // Project schema only
    builder.setProjection(RowSetTestUtils.projectAll());
    builder.addReader(new MockSimpleReader());
    builder.builder.providedSchema(providedSchema);
    builder.builder.nullType(Types.optional(MinorType.VARCHAR));
    ScanFixture scanFixture = builder.build();
    ScanOperatorExec scan = scanFixture.scanOp;
    TupleMetadata expectedSchema = new SchemaBuilder().add("a", MinorType.INT).add("d", MinorType.BIGINT).add("e", MinorType.BIGINT).buildSchema();
    // Initial schema
    assertTrue(scan.buildSchema());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    // Batch with defaults and null types
    assertTrue(scan.next());
    {
        SingleRowSet expected = fixture.rowSetBuilder(expectedSchema).addRow(10, 20L, 30L).build();
        RowSetUtilities.verify(expected, fixture.wrap(scan.batchAccessor().container()));
    }
    assertFalse(scan.next());
    scanFixture.close();
}